The Sensex today crashed over 1,500 points - the biggest in over seven years and third-largest in the benchmark's history.

The overall investors' wealth, measured in terms of total valuation of all listed stocks, also plunged nearly by Rs 3.5 lakh crore as it crashed below Rs 100-lakh crore mark and stood at Rs 97,64,237 crore in afternoon trade.

However, around 50 stocks defied the broader market trend and touched 52-week high level.